Which of the following is equivalent to: sin? 2x O 4 cos“ – 4 cos² 4 cos? a – 4 cos“ O 2 cos“ – 2 cos? e O 2 cos a – 2 cos“ x

Q: a. r = 3 sin(20) b. r = 3 cos(20) C. r = 1 + 2 sin(0)

A: a) r=3sin2θ

Q: 7 cos? B - 7 sin² B = 14 cos? B - 7

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Q: Using the sum and difference identities, which equation is TRUE? 3n A. CoS 37 COS 8. - sin sin = 1…

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Q: cos2e sin20 + csc 0 sin e

A:

Q: Which of the following is equivalent to: sin 2x O 2 cos? a – 2 cos“ a O 4 cos a – 4 cos“ æ O 4 cos“…

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Q: Given that sin A = -= and tan B which of the following is the 12 %3D value of cos(A – B) if A and B…

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Q: Complete the identity. (sin x + cos x) cos x)- 1+2 sin x cO X O A. 1- sin x O B. 0 OC. sec x O D. 1

A: use (a+b)2 = a2 + b2 + 2ab and sin2 x + cos2 x = 1

Q: Which of the following identities is not valid? O None of the choices À ·B = B · Ã ад ав — сos @AB č…

A: The objective is to determine the invalid identity. Here, A→·B→=B→·A→ is a valid identity.

Q: cos 44 + 1 is equal to: A. 2(сos A - 1)2e B 2 cos? 24e cos? Ae D sin 24e E 1- sin 24e

A:

Q: Which of the following are identities? 1. sin (½ + x) = sin -sin x II. sin (x - 2) = sinx - sin 그플…

A: The given expressions are,I. II. III. IV. The aim is to find the true identities.

Q: Find cos(A) and cos(B). Select all that apply. 20 A В 25 3 cos(B) 4 cos(B) 3 cos(A) 4 4 cos(A) ||

A: Given: ∠C =  90° then the △ACB is Right angled triangle

Q: Which one of the following is not equal to cos 4x for all real values of x?«- A sin? 2x – cos? 2x+ В…

A: Evaluating each of the options given

Q: Venfy the identity. sec x cscx= sec x + csc x Which of the following four statements establishes the…

A: To verify the identity sec2x csc2x=sec2x+csc2x

Q: n/4 3 + 5 cos? e de cos? e

A:

Q: If sin A = -3/5 and cos A > 0 and cos B = 5/13 and sin B < 0, evaluate tan (A+ B ). O -63/16 O…

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Q: The value of the expression cos² x – tan? x – 1+ sin² x + sec² x is O 2 tan r O -2 csc x O 2 O 1 O 2…

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Q: Verify the identity. (csc? 0+ 1) (- cos? 0+1) = 2- cos? 0 Which of the following four statements…

A: our objective is to verify the above identity.

Q: 30 30 3. An equivalent expression for cos cos + sin sin is A. sin 20 В. cos 20 C. sin O D. cos 0

A: Here , we will use the formula of Cos(A-B)

Q: Establish the identity. 1+ cos e sec 0 +1 1- cos e sec 0-1 Which of the following four statements…

A: